Influencing factors | Variables | B value | Standard error | t value | P value | R2 value |
---|---|---|---|---|---|---|
Spinopelvic parameters | PI | 0.407 | 0.055 | 7.462 | < 0.001 | 0.680 |
PT | − 0.229 | 0.048 | − 4.788 | < 0.001 |  | |
SS | − 0.466 | 0.049 | − 9.556 | < 0.001 |  | |
Constant | 57.972 | 0.984 | 58.886 | < 0.001 |  | |
Concave or convex LMA at the upper or lower intervertebral level of the apical vertebra | Lower intervertebral level LMA | Â | Â | Â | Â | 0.051 |
 Concave | 0.735 | 0.350 | 2.099 | 0.038 |  | |
 Convex | − 0.668 | 0.258 | − 2.586 | 0.011 |  | |
 Constant | 61.984 | 0.848 | 73.134 | < 0.001 |  |